questionably losing via KO when the second round went 15 seconds over the scheduled duration. Quinn next fought Aaron Brink who won via TKO to strikes, after this fight Quinn and Brink became close friends, and even invited Dan to occasionally train at The Arena MMA gym, host to many current and former UFC fighters including Diego Sanchez and Brink himself. Quinn most recently suffered a loss at the hands of Rick Vardell. Boxing After leaving Notre Dame, Quinn turned to boxing before transitioning to mixed martial arts. He was a multi time champion in the annual Bengal Bouts and also traveled to Florida in 1998 to win a Golden Gloves Heavyweight 8-man single night tournament. Mixed martial arts record |- |Loss |align=center|5–6–1 | Rick Vardell |TKO (strikes) |Gladiator Challenge: Impulse | |style="text-align:center;"|2 |style="text-align:center;"|1:43 |Placerville, California, United States |For Gladiator Challenge Super Heavyweight Championship. |- |Loss |align=center|5–5–1 | Aaron Brink |TKO (doctor stoppage) |Gladiator Challenge: Fahrenheit | |style="text-align:center;"|2 |style="text-align:center;"|0:22 |San Jacinto, California, United States | |- |Loss |align=center|5–4–1 | Harry Gopaul | TKO (punches) | Gladiator Challenge: Chain Reaction | |style="text-align:center;"| 2 |align=center| 2:25 |Placerville, California, United States | |- |Win |align=center|5–3–1 | Bond Lapua | TKO (punches) | Gladiator Challenge: First Strike | |align=center| 1 |align=center| 1:49 |Placerville, California, United States | |- |Loss |align=center|4–3–1 | Dan Molina | TKO (corner stoppage) | Gladiator Challenge 34: Legends Collide | |align=center| 1 |align=center| 4:39 |Colusa, California, United States | |- |Win |align=center|4–2–1 | Mike Macgregor | TKO (doctor stoppage) | Gladiator Challenge 27: Fightfest 2 | |align=center| 1 |align=center| 4:08 |Colusa, California, United States | |- |Win |align=center|3–2–1 | Adrian Perez | Submission (guillotine choke) | Gladiator Challenge 22 | |align=center| 1 |align=center| 2:18 |Colusa, California, United States | |- |Loss |align=center|2–2–1 | Jason Lambert | Decision (unanimous) | Gladiator Challenge 12 | |align=center| 3 |align=center| 5:00 |Colusa, California, United States | |- |Win |align=center|2–1–1 | Rick Vardell | TKO (strikes) | Gladiator Challenge 9 | |align=center| 1 |align=center| 4:57 |Colusa, California, United States | |- | Draw |align=center|1–1–1 | Kevin Tolai | Draw | Gladiator Challenge 7: Casualties of War | |align=center| 2 |align=center| 5:00 |Colusa, California, United States | |- |Loss |align=center|1–1 | Frank Mir | Submission (triangle choke) | IFC: Warriors Challenge 15 | |align=center| 1 |align=center| 2:15 |Oroville, California, United States | |- |Win |align=center|1–0 | Tosh Cook | Decision | IFC: Warriors Challenge 13 |